* [http://www.let.rug.nl/usa/biographies/geronimo/ GERONIMO; Barret, S.M. (25 de octubre de 2014). Geronimo: His own History. Penguin Group. p. American History. ISBN 978-1-101-12804-6
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* [http://www.let.rug.nl/usa/biographies/geronimo/ GERONIMO; Barret, S.M. (25 de octubre de 2014). Geronimo: His own History. Penguin Group. p. American History. ISBN 978-1-101-12804-6]
* Hurtado, Albert L..; Iverson., Peter (1994). Major Problems in American Indian History. Documents and Essays. (en [[anglés]]). Arizona State Univesity D.C. Heath and Company. ISBN 978-0618068548
* Hurtado, Albert L..; Iverson., Peter (1994). Major Problems in American Indian History. Documents and Essays. (en [[anglés]]). Arizona State Univesity D.C. Heath and Company. ISBN 978-0618068548
* Verner Bradford, Phillips and Harvey Blume: Ota Benga: The Pygmy in the Zoo. St. Martin's Press, New York, 1992
* Verner Bradford, Phillips and Harvey Blume: Ota Benga: The Pygmy in the Zoo. St. Martin's Press, New York, 1992